Results of mathematical modeling and whole cell 16S ribosomal RNA-targeted fluorescence in situ hybridizations challenge the widely held perception that microbial populations in "steady-state" activated sludge systems share a common net growth rate that is proportional to the inverse of the mean cell residence time. Our results are significant because they encourage bioprocess engineers to appreciate the differences in growth physiology among individual microbial populations in complex mixed microbial communities such as suspended growth activated sludge bioreactor systems.
P. G. Stroot et al., "Dynamic Growth Rates of Microbial Populations in Activated Sludge Systems," Journal of Environmental Engineering, vol. 131, no. 12, pp. 1698-1705, American Society of Civil Engineers (ASCE), Dec 2005.
The definitive version is available at http://dx.doi.org/10.1061/(ASCE)0733-9372(2005)131:12(1698)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Biological sewage treatment; Biomass; Bioreactors; Cells; Ecology; Fluorescence; Growth kinetics; Mathematical models; Microbiology; RNA; Activated sludge systems; Dynamic growth rates; Growth physiology; Microbial populations; Activated sludge process; activated sludge; biological treatment; mathematical modeling; microbial pollutant; Microbes
International Standard Serial Number (ISSN)
Article - Journal
© 2005 American Society of Civil Engineers (ASCE), All rights reserved.